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Fertilizer Spreader Calibration Report

Ensure accurate fertilizer application by documenting spreader calibration. Record target and measured rates, uniformity, and settings with this easy-to-use template.

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Fertilizer Spreader Calibration Report

No.FSC-2026-003

1. General Information

Inspection date7/14/2026
Expert Tom Baker , Operator

2. Object of Inspection

Object nameJohn Deere 7400 Spreader

3. Calibration Details

Calibration MethodPan test Target Application Rate200 kg/ha
Measured Application Rate198 kg/ha Uniformity Coefficient5.2%
Spreader SettingsGate opening: 4, RPM: 540

4. Additional Information

Identification was carried outSpreader ID: SP-2022-045
There are remarksCalibration within tolerance.

5. Inspection Participants

No.Full namePosition / statusComment
1Tom BakerOperatorPerformed calibration
2Dr. Laura GreenAgronomistVerified results

Signatures

______________________________
Tom Baker, Operator
______________________________
Tom Baker
______________________________
Dr. Laura Green

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Purpose and Procedure for Drafting the Document

What is a Fertilizer Spreader Calibration Report?

A fertilizer spreader calibration report documents the process and results of calibrating a spreader to ensure it applies fertilizer at the desired rate and uniformity. It is essential for efficient and environmentally responsible farming.

Why Use This Template?

This template provides a structured format to record calibration method, target and measured application rates, uniformity coefficient, and spreader settings. It helps maintain accurate records for compliance and best practices.

Key Information Captured

The report includes report identification, calibration details (method, rates, uniformity, settings), observations, and signatures of the operator and agronomist.

Pre-Season Preparation

Before the application season, calibrating spreaders ensures that fertilizer is applied accurately from the start, reducing waste and environmental impact.

Equipment Change or Repair

After repairing or adjusting a spreader, calibration verifies that it still operates within acceptable tolerances.

New Equipment Setup

When a new spreader is purchased, calibration establishes baseline settings for different fertilizer types and application rates.

Record Keeping for Audits

Calibration reports serve as evidence of due diligence during farm audits or inspections by regulatory bodies.

  1. 1

    Check Spreader Condition

    Inspect the spreader for any visible damage or wear that could affect calibration.

  2. 2

    Perform Calibration Test

    Conduct a calibration test using a method such as a pan test or belt test, and measure the actual application rate.

  3. 3

    Adjust and Document

    Adjust spreader settings if needed to match the target rate, then record all parameters and results in the report.

Photo Report Generator

Attach photos of the spreader and calibration setup to your report for visual verification using the photo report generator.

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Mobile Photo Documentation App

Capture calibration test photos on-site with the mobile app and add them directly to your fertilizer spreader calibration report.

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Document Sections

Click a section to jump to it in the sample document.

General Information

Record the report date and operator name.

Object of Inspection

Identify the fertilizer spreader by make, model, and serial number.

Calibration Details

Document the calibration method, target application rate, measured rate, uniformity coefficient, and spreader settings.

Additional Information

Record any observations noted during calibration.

Inspection Participants

List the operator and agronomist involved.

Signatures

Capture signatures of the operator and agronomist.

Document Fields and Columns

General Information

Inspection date
Date when the calibration was performed.
Expert
Name of the operator performing calibration.

Object of Inspection

Object name
Spreader identification (make, model, serial).

Inspection Participants

No.
Sequential number for each participant.
Full name
Full name of the participant.
Position / status
Role or title of the participant.
Comment
Any additional comments.

Frequently Asked Questions about Photo Reports and Photo Tables

What information is needed to complete this report?

You will need the spreader identification (make, model, serial number), calibration method, target and measured application rates, spreader settings, and any observations. Signatures from the operator and agronomist are also required.

Who should sign the calibration report?

The operator who performed the calibration and the agronomist overseeing the process typically sign the report. If no agronomist is involved, the operator's signature may suffice.

Can I use this template for different types of spreaders?

Yes, the template is designed to be flexible and can be used for various spreader types, including broadcast spreaders, drop spreaders, and pneumatic spreaders.

How do I measure the uniformity coefficient?

The uniformity coefficient can be calculated from collection pan data. The template allows you to enter the value manually; you can also describe the method in the observations section.

Is this report accepted for regulatory compliance?

While this template provides a thorough record, specific regulatory requirements may vary. It is advisable to check with local agricultural authorities for any mandatory formats.

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